US4559996A - Modular bundle of tubes for a steam condenser, and a steam condenser using such modular bundles - Google Patents

Modular bundle of tubes for a steam condenser, and a steam condenser using such modular bundles Download PDF

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Publication number
US4559996A
US4559996A US06/615,188 US61518884A US4559996A US 4559996 A US4559996 A US 4559996A US 61518884 A US61518884 A US 61518884A US 4559996 A US4559996 A US 4559996A
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US
United States
Prior art keywords
tubes
condenser
bundle
frame
modular
Prior art date
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Expired - Lifetime
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US06/615,188
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English (en)
Inventor
Bernard Andrieux
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Delas Weir SA
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Delas Weir SA
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements
    • F28F2275/205—Fastening; Joining with threaded elements with of tie-rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/906—Reinforcement

Definitions

  • a steam condenser for an electricity power station is constituted by an assembly of tubes having each of their ends connected to a perforated plate, the assembly being placed inside a condenser body which is connected to the exhaust from the turbines, and a water tank is connected to each perforated plate.
  • the tubes are mounted in the perforated plates and are then fixed thereto by expanding or by welding at the power station size. This operation takes a long time since there are many tubes to be put into place.
  • FIGS. 1 and 2 thus show an example of a known arrangement used at the San Onofre power station in California, USA.
  • the steam condenser comprises a bundle of tubes 1 between perforated plates 2 and 3 which is constructed in a factory and then assembled, on site, with the body of the condenser 4.
  • the bundle of tubes comprises four modules which are assembled together on site. Before the modules arrive, the condenser body is terminated by two right-angled portions 5 and 6. In known manner the portion 6 has four windows as shown in FIG. 2. The left hand side of the body 4 as seen in FIG. 1 terminates with a portion 7. The perforated plate 3 of each module is connected to a frame 8 by means of screws 9. Portions 10 and 11 are welded to appropriate faces of the frame to close the condenser body.
  • the left hand water tank 12 on site is terminated by a plate 13 which is of the same shape as the part 6 shown in FIG. 2, which is why the part shown in FIG. 2 is referenced 13-6. The plate 13 is fixed to the four perforated plates 3 to hold them together.
  • each module comprises a simple perforated plate 2 at its right hand end (as seen in FIG. 1) while at its left hand end it comprises the perforated plate 3 together with the parts 8, 10 and 11.
  • the module made in this way is inserted from right to left through one of the four windows in the portion 6 until the perforated plate 2 abuts against the portion 6 via a gasket 18.
  • the assembly is then fixed by means of screws 15 and the plates 11 are welded to the body 4.
  • the water tank 12, 13 is then fixed on by means of screws 16.
  • Gaskets 14 and 19 are disposed on either side of the perforated plate 3, between the perforated plate and the frame 8 and between the perforated plate and the frame 13.
  • Preferred embodiments of the present invention mitigate these drawbacks and provide a solution which is more satisfactory, more practical, and more reliable.
  • the present invention provides a modular bundle of tubes for a steam condenser comprising two perforated plates, a series of tubes interconnecting the perforated plates, and a set of intermediate supporting plates distributed between the two perforated plates, the improvement wherein both perforated plates are the same size, each being surrounded by a reinforcing frame which is thicker than the perforated plate, and wherein drawbars fitted with length-adjusting means interconnect the perforated plates, said drawbars being fixed to said frames and being distributed along the same frames.
  • the invention also provides a steam condenser comprising a skin containing a bundle of tubes which is associated at each end with a water tank, wherein the said bundle of tubes is made by assembling in parallel a plurality n of such modular bundles of tubes.
  • the n bundles of tubes are assembled at each end by means of an assembly frame having n windows and bearing against and fixed to the reinforcing frame of each modular bundle on the outside thereof relative to the tubes, the outer perimeter of the assembly frame having an external extension projecting beyond the outer perimeter of the assembled bundles of tubes, said assembly frame being fixed along said outer edge to a flange on the skin of the condenser, the size of the passage through the flange being the same at each end of the condenser.
  • FIGS. 1 and 2 are diagrams showing details of a prior art condenser constructed from factory-built modules which are assembled on site;
  • FIG. 3 shows a modular bundle of tubes in accordance with the invention
  • FIG. 4 is a view in partial section and to a larger scale of turnbuckle length-adjusting means used in the FIG. 3 bundle;
  • FIG. 5 is a view of a portion of the assembly of modular bundles of tubes mounted in a condenser enclosure
  • FIG. 6 is a view in the direction of arrow VI in FIG. 5 showing the geometry of a frame for assembling various modules
  • FIG. 7 is a view on an enlarged scale of a detail marked VII in FIG. 5;
  • FIG. 8 shows a variant of the FIG. 7 detail
  • FIG. 9 is a view along arrow IX in FIG. 8.
  • FIG. 3 shows a modular bundle of tubes in accordance with the invention. It comprises two perforated end plates 20 and 21, and a plurality of intermediate supporting plates 23. Each perforated plate is surrounded by a reinforcing frame: 24 for the plate 20; and 25 for the plate 21. The reinforcing frames are welded to their respective plates. Finally, a series of drawbars 26 interconnect the two plates and include length-adjusting means that enable them to set the distance between the plates with accuracy. These means are shown in greater detail in FIG. 4. The drawbars are at a spacing of about 500 mm. At least some of the intermediate supporting plates 23 are connected to the drawbars to increase the rigidity of the assembly.
  • the length-adjusting means comprise a turnbuckle 27 having a bore which is tapped from each end with opposite handed threads.
  • the drawbars are made in two parts 26a and 26b, and their respective ends have opposite handed external threads which are screwed into the turnbuckle.
  • Lock nuts 28 at the other ends of the draw rod parts lock them in position in the end frames.
  • the frames 24 and 25 and the drawbars 26 together with the intermediate supporting plates 23 give the assembly excellent rigidity.
  • the module is symmetrical and the perforated plates at both ends of the tubes in the bundle are of the same size.
  • FIG. 5 shows the manner in which a module, such as the module shown in FIG. 3, is assembled together with three other identical modules and then inside a condenser enclosure.
  • the condenser has an outer skin 29 which is shown in part.
  • a flange 30 which is welded to the skin and serves to fix the set of four assembled modules inside the skin.
  • FIG. 5 shows only a small portion, but the overall assembly is symmetrical, left to right and top to bottom.
  • the modules are assembled to one another by means of an assembly frame 31 which bears against the four end frames 25 of the modules to be assembled together.
  • the parts are fixed to one another by stud bolts 32 passing through holes 32a in the frame 31, with nuts 33.
  • Gaskets 34 and 35 are interposed around each of the frames 25 on each module between the frame 31 and the respective frames 25.
  • bearing strips 36 are interposed all along the frame in 500 mm lengths between the nuts 33 and the frame 31.
  • the outer perimeter of the frame 31 has an outward extension 37 which projects beyond the outside perimeter of the complete assembled bundle of tubes for fixing to the flanges 30 by means of threaded rods 38 passing through holes 38a in the assembly frame, together with nuts 39 and 40.
  • Gaskets 43 and 44 are interposed between the outer edge 37 of the frame 31 and the flange 30.
  • a bearing frame 45 and a gasket 46 are interposed between the flange 42 and the frame 31.
  • FIG. 7 is a view on an enlarged scale of the part marked VII in FIG. 5.
  • FIG. 8 shows a variant of FIG. 7 in which the gaskets 34 and 35 are protected by a hydraulic barrier.
  • Each reinforcing frame 25 is thus provided with facing 47 all around its periphery, the facing is connected by channels 48 and 49 to a water supply, not shown, at a higher pressure than the cooling water arriving in the water tank 41 (FIG. 5).
  • the bearing plates 36 are then replaced by individual thick washers 50.
  • the gaskets 51 and 52 are interposed between the frame 31 and the washers 50 and between the washers 50 and the rods 32.
  • the assembly frame 31 is fixed to the frames 25 of the modules by screws, which is the preferred reinforcing method.
  • screws which is the preferred reinforcing method.
  • other fixing means could be used, and the assembly frame 31 could be welded to the reinforcing frames 25, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Resistance Heating (AREA)
  • Sorption Type Refrigeration Machines (AREA)
US06/615,188 1983-06-03 1984-05-30 Modular bundle of tubes for a steam condenser, and a steam condenser using such modular bundles Expired - Lifetime US4559996A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8309229 1983-06-03
FR8309229A FR2547035B1 (fr) 1983-06-03 1983-06-03 Faisceau tubulaire modulaire pour condenseur de vapeur

Publications (1)

Publication Number Publication Date
US4559996A true US4559996A (en) 1985-12-24

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US06/615,188 Expired - Lifetime US4559996A (en) 1983-06-03 1984-05-30 Modular bundle of tubes for a steam condenser, and a steam condenser using such modular bundles

Country Status (8)

Country Link
US (1) US4559996A (ko)
EP (1) EP0128452B1 (ko)
JP (1) JPS6141885A (ko)
KR (1) KR930000654B1 (ko)
CA (1) CA1271377A (ko)
DE (1) DE3461562D1 (ko)
ES (1) ES8503121A1 (ko)
FR (1) FR2547035B1 (ko)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708197A (en) * 1985-11-01 1987-11-24 Robbins R Ralph Air to air heat exchanger
US4962810A (en) * 1989-09-18 1990-10-16 Rockwell International Corporation Heat exchanger
EP1769740A1 (en) 2005-10-03 2007-04-04 Unomedical Limited A biomedical electrode, a gel for use in a biomedical electrode and a method of producing a biomedical electrode
US20100314083A1 (en) * 2009-06-12 2010-12-16 George Williams Condenser Shell and Tube Bundle Support Plate Construction
US20110024082A1 (en) * 2009-05-09 2011-02-03 Tranter, Inc. Heat exchanger with accessible core
US8534346B1 (en) 2006-11-16 2013-09-17 Climatecraft Technologies, Inc. Flexible heat exchanger

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518089C2 (sv) 1999-10-26 2002-08-27 Tetra Laval Holdings & Finance Anordning vid en tubvärmeväxlare
EP1126227A1 (de) 2000-02-09 2001-08-22 ALSTOM POWER (Schweiz) AG Dampfkondensator
JP5546853B2 (ja) * 2009-12-25 2014-07-09 株式会社東芝 復水器および復水器の組み立て方法
JP6291886B2 (ja) * 2014-02-12 2018-03-14 新日鐵住金株式会社 伝熱管の交換方法
FR3044395B1 (fr) * 2015-11-27 2018-01-12 Eiffage Construction Metallique Echangeur de chaleur a plaque tubulaire renforcee

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US704454A (en) * 1900-06-18 1902-07-08 Henry A Ferguson Feed-water heater and condenser.
FR420242A (fr) * 1909-11-17 1911-01-25 Pauline Tholer Condenseur de vapeur
US1842945A (en) * 1930-12-04 1932-01-26 Griscom Russell Co Heat exchanger
US1918608A (en) * 1931-03-04 1933-07-18 Alco Products Inc Apparatus for condensing hydrocarbons
US2036957A (en) * 1936-02-19 1936-04-07 Griscom Russell Co Heat exchanger
US2059967A (en) * 1933-08-05 1936-11-03 Charles H Leach Heat exchange apparatus
US2181486A (en) * 1938-03-19 1939-11-28 Andale Co Heat exchange equipment
US2237903A (en) * 1940-01-25 1941-04-08 Robert W Drake Open type condenser
US2552416A (en) * 1945-09-26 1951-05-08 American Locomotive Co Heat exchanger
US2595822A (en) * 1949-10-25 1952-05-06 Young Radiator Co Spring seal for tube and shell heat exchangers
GB674652A (en) * 1950-01-26 1952-06-25 Howard Iron Works Inc Improvements in tube bundle assembly for heat exchangers
FR1211918A (fr) * 1957-12-23 1960-03-18 Foster Wheeler Ltd échangeurs de chaleur perfectionnés
US3231015A (en) * 1963-05-01 1966-01-25 Babcock & Wilcox Co Graphite-plate heat exchange apparatus
US3332477A (en) * 1965-01-05 1967-07-25 Richmond Engineering Company I Water heating apparatus
FR2126323A1 (ko) * 1971-02-23 1972-10-06 Sanne Et Wendel As
US3861460A (en) * 1973-05-23 1975-01-21 Laval Turbine Condenser construction
US3986549A (en) * 1975-07-14 1976-10-19 Modine Manufacturing Company Heat exchanger
US4202407A (en) * 1978-07-24 1980-05-13 Didier Engineering Gmbh Apparatus for cooling gases from coke plants
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401889A (en) * 1942-09-18 1946-06-11 Rca Corp Secret telephony
JPS5664285A (en) * 1979-10-31 1981-06-01 Toshiba Corp Condensor

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US704454A (en) * 1900-06-18 1902-07-08 Henry A Ferguson Feed-water heater and condenser.
FR420242A (fr) * 1909-11-17 1911-01-25 Pauline Tholer Condenseur de vapeur
US1842945A (en) * 1930-12-04 1932-01-26 Griscom Russell Co Heat exchanger
US1918608A (en) * 1931-03-04 1933-07-18 Alco Products Inc Apparatus for condensing hydrocarbons
US2059967A (en) * 1933-08-05 1936-11-03 Charles H Leach Heat exchange apparatus
US2036957A (en) * 1936-02-19 1936-04-07 Griscom Russell Co Heat exchanger
US2181486A (en) * 1938-03-19 1939-11-28 Andale Co Heat exchange equipment
US2237903A (en) * 1940-01-25 1941-04-08 Robert W Drake Open type condenser
US2552416A (en) * 1945-09-26 1951-05-08 American Locomotive Co Heat exchanger
US2595822A (en) * 1949-10-25 1952-05-06 Young Radiator Co Spring seal for tube and shell heat exchangers
GB674652A (en) * 1950-01-26 1952-06-25 Howard Iron Works Inc Improvements in tube bundle assembly for heat exchangers
FR1211918A (fr) * 1957-12-23 1960-03-18 Foster Wheeler Ltd échangeurs de chaleur perfectionnés
US3231015A (en) * 1963-05-01 1966-01-25 Babcock & Wilcox Co Graphite-plate heat exchange apparatus
US3332477A (en) * 1965-01-05 1967-07-25 Richmond Engineering Company I Water heating apparatus
FR2126323A1 (ko) * 1971-02-23 1972-10-06 Sanne Et Wendel As
US3861460A (en) * 1973-05-23 1975-01-21 Laval Turbine Condenser construction
US3986549A (en) * 1975-07-14 1976-10-19 Modine Manufacturing Company Heat exchanger
US4253516A (en) * 1978-06-22 1981-03-03 Westinghouse Electric Corp. Modular heat exchanger
US4202407A (en) * 1978-07-24 1980-05-13 Didier Engineering Gmbh Apparatus for cooling gases from coke plants

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4708197A (en) * 1985-11-01 1987-11-24 Robbins R Ralph Air to air heat exchanger
US4962810A (en) * 1989-09-18 1990-10-16 Rockwell International Corporation Heat exchanger
EP1769740A1 (en) 2005-10-03 2007-04-04 Unomedical Limited A biomedical electrode, a gel for use in a biomedical electrode and a method of producing a biomedical electrode
US8534346B1 (en) 2006-11-16 2013-09-17 Climatecraft Technologies, Inc. Flexible heat exchanger
US20110024082A1 (en) * 2009-05-09 2011-02-03 Tranter, Inc. Heat exchanger with accessible core
US20100314083A1 (en) * 2009-06-12 2010-12-16 George Williams Condenser Shell and Tube Bundle Support Plate Construction

Also Published As

Publication number Publication date
KR930000654B1 (ko) 1993-01-29
ES533065A0 (es) 1985-02-01
KR850000655A (ko) 1985-02-28
ES8503121A1 (es) 1985-02-01
DE3461562D1 (en) 1987-01-15
JPH0228791B2 (ko) 1990-06-26
EP0128452B1 (fr) 1986-12-03
EP0128452A1 (fr) 1984-12-19
JPS6141885A (ja) 1986-02-28
CA1271377A (fr) 1990-07-10
FR2547035A1 (fr) 1984-12-07
FR2547035B1 (fr) 1987-06-26

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